Wait if it was to scan codes then why does it give power only when I ground it

 

Power runs through the scanner, so one of those will be hot, jumping it probably isn't a good idea, leads from it also go into your computer. Heres the wires you need to trace. They are all ground wires and are very important. Your jeep relys on these ground wire to do things like fire injectors, send spark, etc. Take them off the dipstick and clean and sand the connections, re-install and try for spark.

 

Pic too small cant see

 

There are no wires at the dipstick tupe

 

there should be a support from the dipstick tube that is bolted to the block. that is where the grounds are. not where the dipstick actually goes in.

 

Right where the pic I posted shows it.

 

No support but there are grounds onto the block and they look OK. Someone told me there may be some kind of reset fuse in the rear of the truck

 

on your pic, yes. on his, no.

 

did you unplug the cps and hook it back up? cps bad = no spark

 

X2, check the cps with a volt meter

 

Where is the cps on that motor. First jeep so I'm learning. Starting to think the ecu is bad being I have no spark no fuel and have to jump wires to make the coil and fuel pump have power

 

Crank POS. Sensor in in the top of the trans bellhousing, on the drivers side. That jeep uses those ground wires on the dipstick tube stud to give fuel and spark..........

 

So if its not that then wat u think?

 

Obvioisly if you dont have grounds where you are supposed to, nothing is going to work right.

 

No spark, no power to the coil or fuel pump.
Ain't the cps. Ignition switch, or a relay in the realy center. You've checked all your fuses?